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用于展示邮件的信息
DisplayHead.java
package mail;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import javax.mail.BodyPart;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.mail.internet.MimeUtility;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
@SuppressWarnings("serial")
public class DisplayHead extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=gb2312");
PrintWriter out = response.getWriter();
HttpSession session = request.getSession();
int msgnum = Integer.parseInt(request.getParameter("msgnum"));
Folder folder = (Folder) session.getAttribute("folder");
try {
Message msg = folder.getMessage(msgnum);
String from = msg.getFrom()[0].toString();
String subject = msg.getSubject();
String sendDate = DateFormat.getInstance().format(msg.getSentDate());
out.println("邮件主题：" + subject + "
");out.println("发件人:" + from + "
");out.println("发送日期：" + sendDate + "
");System.out.println("contentType：" + msg.getContentType());
// 如果该邮件是组合型"multipart/*"则可能包含附件等
if (msg.isMimeType("multipart/*")) {
Multipart mp = (Multipart) msg.getContent();
for (int i = 0; i < mp.getCount(); i++) {
BodyPart bp = mp.getBodyPart(i);
// 如果该BodyPart对象包含附件，则应该解析出来
if (bp.getDisposition() != null) {
String filename = bp.getFileName();
System.out.println("filename：" + filename);
if (filename.startsWith("=?")) {
// 把文件名编码成符合RFC822规范
filename = MimeUtility.decodeText(filename);
}
// 生成打开附件的超链接
out.print("附件：");
out.print("
+ ">" + filename + "
");+ ">" + filename + "
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
用于显示邮件头内容
DisplayContent.java
package mail;
import java.io.IOException;
import javax.mail.BodyPart;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
@SuppressWarnings("serial")
public class DisplayContent extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
ServletOutputStream sos = response.getOutputStream();
HttpSession session = request.getSession();
int msgnum = Integer.parseInt(request.getParameter("msgnum"));
Folder folder = (Folder) session.getAttribute("folder");
try {
Message msg = folder.getMessage(msgnum);
// 邮件类型不是mixed时，表示邮件中不包含附件，直接输出邮件内容
if (!msg.isMimeType("multipart/mixed")) {
response.setContentType("message/rfc822");
msg.writeTo(sos);
} else {
// 查找并输出邮件中的邮件正文
Multipart mp = (Multipart) msg.getContent();
int bodynum = mp.getCount();
for (int i = 0; i < bodynum; i++) {
BodyPart bp = mp.getBodyPart(i);
/*
* MIME消息头中不包含disposition字段， 并且MIME消息类型不为mixed时，
* 表示当前获得的MIME消息为邮件正文
*/
if (!bp.isMimeType("multipart/mixed") && bp.getDisposition() == null) {
response.setContentType("message/rfc822");
bp.writeTo(sos);
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
用于显示邮件正文
HandleAttact.java
package mail;
import java.io.IOException;
import java.io.InputStream;
import javax.mail.BodyPart;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Multipart;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
@SuppressWarnings("serial")
public class HandleAttach extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html");
HttpSession session = request.getSession();
ServletOutputStream out = response.getOutputStream();
int msgnum = Integer.parseInt(request.getParameter("msgnum"));
int bodynum = Integer.parseInt(request.getParameter("bodynum"));
String filename = request.getParameter("filename");
Folder folder = (Folder) session.getAttribute("folder");
try {
Message msg = folder.getMessage(msgnum);
// 将消息头类型设置为附件类型
response.setHeader("Content-Disposition" alt="JavaMail入门教程之解析邮件（5）" title="JavaMail入门教程之解析邮件（5）" width="200" height="150">
